Titlebook: Satisfying Safety Goals by Probabilistic Risk Assessment; Hiromitsu Kumamoto Book 2007 Springer-Verlag London 2007 Hazard.Industrie.Norm.P

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Realization of Category Requirements,acceptable risk levels. This chapter considers how the requirements demanded for each category can actually be satisfied by uncertainty management, compliance with standards and regulations, dependent failure management, safety margins, human-factors review, early detection and treatment, defense-in-depth, and performance evaluation.

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System Event Quantification, appropriate limit of resolution has been reached [5]. This chapter focuses on the relationships between the top event and the basic events. The reliability parameters presented in Chapter 6 can be extended to the top event [53].

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Human-error Quantification,ust consider the human element; otherwise, the analysis is not creditable [53]. This chapter briefly discuss the human-error quantification. Refer to references [56],[69]–[73] for more detail. There is a software version called HRA Calculator [74]. The ASME PRA Standard recommends the use of THERP [56] and ASEP [69].

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Hazard Identification and Risk Reduction,, and risk-reduction measures are established. This chapter describes risk-reduction approaches based on hazard identification, hazard elimination, prevention and mitigation of initiating events and accident mitigation. Safety systems described in Chapters 2 and 3 are types of products from the risk

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Probabilistic Risk Assessment: PRA,intensive user of the PRA. Whenever there is a need for risk quantification, simpler versions of PRA are used in other fields. Risk quantification without the PRA is imperfect and in a very near future any industry with risks will use more and more complete versions of the PRA.

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